PCM2904 Series
Stereo USB1.1 CODEC with line-out, Bus-powered (HID Interface + 500mA USB Current)
Manufacturer: Texas Instruments
Catalog
Stereo USB1.1 CODEC with line-out, Bus-powered (HID Interface + 500mA USB Current)
Key Features
• PCM2904: Without S/PDIFPCM2906: With S/PDIFOn-Chip USB Interface:With Full-Speed TransceiversFully Compliant With USB 1.1 SpecificationCertified by USB-IFPartially Programmable Descriptors(1)USB Adaptive Mode for PlaybackUSB Asynchronous Mode for RecordBus Powered16-Bit Delta-Sigma ADC and DACSampling Rate:DAC: 32, 44.1, 48 kHzADC: 8, 11.025, 16, 22.05, 32, 44.1, 48 kHzOn-Chip Clock Generator With Single 12-MHz Clock SourceSingle Power Supply: 5 V Typical (VBUS)Stereo ADCAnalog Performance at VBUS= 5 VTHD+N = 0.01%SNR = 89 dBDynamic Range = 89 dBDecimation Digital FilterPass-Band Ripple = ±0.05 dBStop-Band Attenuation = -65 dBSingle-Ended Voltage InputAntialiasing Filter IncludedDigital LCF IncludedStereo DAC:Analog Performance at VBUS= 5 VTHD+N = 0.005%SNR = 96 dBDynamic Range = 93 dBOversampling Digital FilterPass-Band Ripple = ±0.1 dBStop-Band Attenuation = -43 dBSingle-Ended Voltage OutputAnalog LPF IncludedMultifunctions:Human Interface Device (HID) Volume ± Control and Mute ControlSuspend FlagPackage: 28-Pin SSOPAPPLICATIONSUSB Audio SpeakerUSB HeadsetUSB MonitorUSB Audio Interface Box(1)The descriptor can be modified by changing a mask.SpAct is a trademark of Texas Instruments.System Two, Audio Precision are trademarks of Audio Precision, Inc.PCM2904: Without S/PDIFPCM2906: With S/PDIFOn-Chip USB Interface:With Full-Speed TransceiversFully Compliant With USB 1.1 SpecificationCertified by USB-IFPartially Programmable Descriptors(1)USB Adaptive Mode for PlaybackUSB Asynchronous Mode for RecordBus Powered16-Bit Delta-Sigma ADC and DACSampling Rate:DAC: 32, 44.1, 48 kHzADC: 8, 11.025, 16, 22.05, 32, 44.1, 48 kHzOn-Chip Clock Generator With Single 12-MHz Clock SourceSingle Power Supply: 5 V Typical (VBUS)Stereo ADCAnalog Performance at VBUS= 5 VTHD+N = 0.01%SNR = 89 dBDynamic Range = 89 dBDecimation Digital FilterPass-Band Ripple = ±0.05 dBStop-Band Attenuation = -65 dBSingle-Ended Voltage InputAntialiasing Filter IncludedDigital LCF IncludedStereo DAC:Analog Performance at VBUS= 5 VTHD+N = 0.005%SNR = 96 dBDynamic Range = 93 dBOversampling Digital FilterPass-Band Ripple = ±0.1 dBStop-Band Attenuation = -43 dBSingle-Ended Voltage OutputAnalog LPF IncludedMultifunctions:Human Interface Device (HID) Volume ± Control and Mute ControlSuspend FlagPackage: 28-Pin SSOPAPPLICATIONSUSB Audio SpeakerUSB HeadsetUSB MonitorUSB Audio Interface Box(1)The descriptor can be modified by changing a mask.SpAct is a trademark of Texas Instruments.System Two, Audio Precision are trademarks of Audio Precision, Inc.
Description
AI
The PCM2904/2906 is Texas Instruments single-chip USB stereo audio codec with USB-compliant full-speed protocol controller and S/PDIF (PCM2906 only). The USB protocol controller works with no software code, but the USB descriptors can be modified in some areas (for example, vendor ID/product ID). The PCM2904/2906 employs SpAct™ architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct enable playback and record with low clock jitter and with independent playback and record sampling rates.
The PCM2904/2906 is Texas Instruments single-chip USB stereo audio codec with USB-compliant full-speed protocol controller and S/PDIF (PCM2906 only). The USB protocol controller works with no software code, but the USB descriptors can be modified in some areas (for example, vendor ID/product ID). The PCM2904/2906 employs SpAct™ architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct enable playback and record with low clock jitter and with independent playback and record sampling rates.